private int[] getMinOrPrefSizes(DimensionInfo info, boolean min) {
int[] widths = new int[info.getCellCount()];
int toProcess;
for (toProcess = 0; toProcess < widths.length; ++toProcess) {
widths[toProcess] = this.myMinCellSize;
}
for (toProcess = info.getComponentCount() - 1; toProcess >= 0; --toProcess) {
if (info.getSpan(toProcess) == 1) {
int i =
min
? getMin2(info, toProcess)
: Math.max(info.getMinimumWidth(toProcess), info.getPreferredWidth(toProcess));
int size = info.getCell(toProcess);
int span = countGap(info, size, info.getSpan(toProcess));
i = Math.max(i - span, 0);
widths[size] = Math.max(widths[size], i);
}
}
updateSizesFromChildren(info, min, widths);
boolean[] priority = new boolean[info.getCellCount()];
for (int i = info.getComponentCount() - 1; i >= 0; --i) {
int size =
min ? getMin2(info, i) : Math.max(info.getMinimumWidth(i), info.getPreferredWidth(i));
int span = info.getSpan(i);
int cell = info.getCell(i);
int gap = countGap(info, cell, span);
size = Math.max(size - gap, 0);
Arrays.fill(priority, false);
int curSize = 0;
for (int higherPriorityCells = 0; higherPriorityCells < span; ++higherPriorityCells) {
curSize += widths[higherPriorityCells + cell];
priority[higherPriorityCells + cell] = true;
}
if (curSize < size) {
boolean[] higherPriorityCells = new boolean[priority.length];
this.getCellsWithHigherPriorities(info, priority, higherPriorityCells, false, widths);
distribute(higherPriorityCells, info, size - curSize, widths);
}
}
return widths;
}
private static boolean isCellEmpty(DimensionInfo info, int cellIndex) {
if (cellIndex >= 0 && cellIndex < info.getCellCount()) {
for (int i = 0; i < info.getComponentCount(); ++i) {
Component component = info.getComponent(i);
if (info.getCell(i) == cellIndex && !(component instanceof Spacer)) {
return false;
}
}
return true;
} else {
throw new IllegalArgumentException(
"wrong cellIndex: " + cellIndex + "; cellCount=" + info.getCellCount());
}
}
private static void updateSizesFromChildren(DimensionInfo info, boolean min, int[] widths) {
for (int i = info.getComponentCount() - 1; i >= 0; --i) {
Component child = info.getComponent(i);
GridConstraints c = info.getConstraints(i);
if (c.isUseParentLayout() && child instanceof Container) {
Container container = (Container) child;
if (container.getLayout() instanceof GridLayoutManager) {
updateSizesFromChild(info, min, widths, container, i);
} else if (container.getComponentCount() == 1
&& container.getComponent(0) instanceof Container) {
Container childContainer = (Container) container.getComponent(0);
if (childContainer.getLayout() instanceof GridLayoutManager) {
updateSizesFromChild(info, min, widths, childContainer, i);
}
}
}
}
}
private static boolean shouldAddGapAfterCell(DimensionInfo info, int cellIndex) {
if (cellIndex >= 0 && cellIndex < info.getCellCount()) {
boolean endsInThis = false;
boolean startsInNext = false;
int indexOfNextNotEmpty = -1;
int i;
for (i = cellIndex + 1; i < info.getCellCount(); ++i) {
if (!isCellEmpty(info, i)) {
indexOfNextNotEmpty = i;
break;
}
}
for (i = 0; i < info.getComponentCount(); ++i) {
Component component = info.getComponent(i);
if (!(component instanceof Spacer)) {
if (info.componentBelongsCell(i, cellIndex)
&& DimensionInfo.findAlignedChild(component, info.getConstraints(i)) != null) {
return true;
}
if (info.getCell(i) == indexOfNextNotEmpty) {
startsInNext = true;
}
if (info.getCell(i) + info.getSpan(i) - 1 == cellIndex) {
endsInThis = true;
}
}
}
return startsInNext && endsInThis;
} else {
throw new IllegalArgumentException(
"wrong cellIndex: " + cellIndex + "; cellCount=" + info.getCellCount());
}
}